1223results about "Rocking chairs" patented technology

A chair includes a base having a control assembly operably supporting a seat assembly and also a back assembly for movement about a seat tilt axis and a back tilt axis, respectively. The back assembly includes a flexible sheet supported at upper / outer corners by a back support structure and hanging downwardly. The flexible sheet includes a lower portion coupled to the back support structure by a tensioner for holding the lower portion rearwardly. A vertically-adjustable lumbar mechanism is adjustably supported on the back support structure and operably engages the flexible sheet for flexing a lumbar area of the flexible sheet forwardly to provide an optimal ergonomic horizontal and vertical convex shape for postural lumbar support.

A reclinable passenger seat having a seat frame mounting a seat bottom, a seat back extending upwardly from the seat bottom, and a seat bottom / seat back articulation assembly for simultaneously varying the adjustment of the seat bottom and seat back relative to each other. A translation linkage is provided for mounting the seat bottom and seat back for translating movement of the seat bottom relative to the seat back as the seat back is reclined from an upright position and raised to an upright position. The translation linkage extends the effective length of the seat bottom relative to the seat back to provide additional support to the buttocks and legs of the seated passenger.

A portable ventilator uses a Roots-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of noise reducing pressure compensating orifices on the Roots blower housing and multiple baffling chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.

A portable therapeutic seat exercise apparatus and method that provide a lightweight personal exerciser designed for a person to use to improve physical status, and for the exercise, alignment, and stress reduction of a person's trunk, spine, abdomen, pelvis, and thighs. It encourages and enhances low back mobility in contrast to the static nature of regular sitting. It consists of a lightweight contoured seating surface supported by at least one arcuate hemispherical base that allows unrestricted motion in all directions, including twisting, tilting, and rocking. It can be placed on many seating surfaces including but not limited to sofas, dining chairs, school desk chairs, office chairs, factory benches, and motor vehicle seats. Its use facilitates low back muscular stabilization, conditioning, strengthening, coordination, and enhancement of proprioceptive senses. Interchangeable parts and add-on attachments can be used in differing combination to vary height, depth, position, and arc of the seat-supporting base.

A reclining apparatus is provided between a post and a seat of a chair. The reclining apparatus includes a first joint for attachment to the post, a second joint pivotally connected with the first joint for supporting the seat and a locking device for locking the second joint in one of several reclined positions relative to the casing.

A seating unit includes a base, a seat, a back, and a control operably supporting the seat and the back on the base for movement between upright and recline positions. The control includes a spring providing a biasing supporting force to the back during recline, and further includes a booster mechanism for increasing the supporting force, and still further includes a stop member and a selector device for activating and deactivating the booster mechanism. The selector device is easily movable with a low effort that is independent from friction generated by internal components of the booster mechanism. The stop member is linearly slidably mounted atop a control housing for selectively engaging the booster mechanism and the link for movement between a disengaged position, a booster-engaged position, a partial-recline position, and a recline-prevented position.

A seating unit includes a seat, a back, a base, and a motion control having a plurality of flexible supports for operably supporting the seat and back on the base. The flexible supports are movable in a generally fore-to-aft direction but stiff in a generally vertical direction, and further the flexible supports have end sections projecting generally outward from said base for operably engaging the seat and / or back, so that when the flexible supports flex in the fore-to-aft direction, they provide for directed movement of the seat and / or the back. In one form, the flexible supports form leaf-spring-like beams with resiliently bendable ends that flex in a slightly angled fore-aft direction to provide a predetermined synchronized path of movement of the seat and back.

An infant glider device is disclosed. The glider includes a base, a carriage that moves in an oscillatory motion along a predetermined path with respect to the base, and seat connected to the carriage. The seat is rotationally repositionable about an axis generally perpendicular to the carriage, and is adapted to be reoriented from a first seat facing position to a second seat facing position, and vice versa.

A swivel and reclining chair has a base support, a base bowl mounted on the base support, and a seating bowl slidably disposed in and over the base bowl. A plurality of friction reduction features are disposed on the inside surface of the base bowl. The outer surface of the seating bowl is spherical in shape and rests on the friction reduction features. The seating bowl is larger in area than the base bowl, and can freely slide in two dimensions as well as rotate in a spherical surface. Optionally, a guard ring is disposed outside of the base bowl and is attached to the base bowl at their rims.

The invention relates to furniture, in particular to sitting devices and can be used as a work chair or therapeutic furniture.The aim of said invention is to develop a sitting device which would make it possible to efficiently relieve the backbone in a sitting posture taking into consideration individual morphological and functional asymmetries, thereby normalizing the work of other organs and systems of an organism, first and foremost the organs of the small pelvis, optimizing the “turtuosity” of the backbone associated with constitutional and geophysical factors.The sitting device comprises a support provided with a base in a top part thereof, on which a seat is mounted; said seat consists of two parts pivotally arranged on a horizontal axis which lies on a frontal plane and is fixed to the base, each part of the seat being provided with adjusters of the rotational motion thereof with respect to the horizontal axis; the device can be provided with a back and a bracket bearing a backrest, comprising two supporting elements pivotally arranged on the horizontal axis which lies on the frontal plane and fixed to the bracket, each supporting element of the backrest being provided with adjusters of the rotational motion thereof with respect to the horizontal axis.

A tilt adjustment assembly for a motorized reclining chair having a base frame adapted for rest on a floor surface. A seat and a back articulated support linkage are interconnected together for displacement of a seat and back of a reclining chair. An intermediate frame is mounted on the base frame through spring attachments, whereby to impart a rocking motion to the chair. A pair of foot rest linkages interconnect each of two of the said seat articulated support linkages to a foot rest plate. The tilt adjustment assembly comprises a motor-operated actuating rod secured at a free end to a sliding member to guidingly displace that member along a straight axis in a fixed plane and to any desired position along the axis. A pivotal link arm is pivotally secured at one end of the sliding member. A transverse linkage securing rod is secured to a second end of the pivotal link arm and extends transversely thereto. The transverse securing rod has opposed ends pivotally connected to an intermediate link arm of a respective one of the pair of foot rest linkages. Tensioning springs are secured to each of the pair of foot rest linkages for applying a restoring force to the foot rest to a retracted position.

A chair wherein a backrest frame 5 located rearwardly of a seat frame 4 is divided into a backrest upper frame 55 and a backrest lower frame 50, at least the backrest upper frame 55 being capable of inclining rearwardly, is of a construction that shafts 8 and 71 for rearwardly inclining the backrest upper frame 55 are provided to allow the backrest upper frame 55 to incline rearwardly about one of the shafts 8 and 71. The chair of this construction is made more comfortable to sit.

A seating furniture item, in particular an office chair, has a seat fastened on a seat support and a backrest fastened to a backrest support, the backrest support being articulatedly arranged on a base support and the backrest support and the seat support being articulatedly connected with each other via two levers, and in which one of the two levers is positively guided directly on the base support.

A spine support is provided in particular for the use in a seat of a vehicle with at least one bending element (20) and at least two independent operating elements (41a, 42a, 41b, 42b) to bend the bending element (20), wherein the first operating element (41a, 42a) engages a first part of the bending element (20) to cause first curvature of the spine support and the second bending element (41b, 42b) engages a second part of the bending element (20) to cause a second curvature of the spine support so that the overall curved shape of the spine support is a superposition of the first and second curvature. According to a further aspect, the present invention relates to a spine support, in particular for the use in the seat of a vehicle with at least one bending element (20) and at least one supporting element (30'), wherein the at least one supporting element (30') is flexibly attached to the at least one bending element (20).